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Abstract

This IBM Redbooks publication is designed to help you select the most appropriate server platform for a business application or set of applications. The book discusses the issues you should consider and how different platforms address those issues. It also gives you an appreciation of an S/390 server as a possible solution to your requirements.

The purpose of this book is to help you: - Understand the key items to consider when choosing a large server - Compare different platforms, especially S/390 and traditional UNIX servers (S/390 is also a UNIX server) - Learn the advantages of the S/390 platform - Appreciate all the cost implications of your platform choice

A sample cost comparison of S/390 and traditional UNIX servers and a checklist of key questions to consider are included.

This book is relevant for people looking at: - Realignment of information technology with their business goals - Local area network (LAN) or application consolidation - Applications that have traditionally run on host computers - New applications - Data mining - Query applications - UNIX servers - Internet servers

In the context of this book, S/390 refers to IBM S/390 servers running OS/390. Other IBM operating systems, such as VM/ESA and VSE/ESA also support IBM S/390 servers and provide significant value for customers when compared to other platforms. These other environments are beyond the scope of this book.